Perhaps you should try some spelling variations:
tran chong » tran hong, tran phong, tran cong
thuat tach » thuat sach, thuat mach, thuat thanh
chong cong » cong cong, thong cong, cuong cong
thuat tac » thuat tao, thuat tai, thuat tam
manh tran » manh toan, manh tuan, canh tranh
tran tran » tan tran, tran tuan, tran tan
cong tinh » cong trinh, cong vinh, long tinh
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((thuat tach) or (thuat tac)) - manh tran tran chong cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thuat tach) OR (thuat tac)) - manh tran tran chong cong tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((thuat tach) or (thuat tac)) - manh tran tran chong cong tinh toan cao*.